mirror of
https://github.com/libguestfs/libguestfs.git
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95 lines
2.5 KiB
C
95 lines
2.5 KiB
C
/* libguestfs - the guestfsd daemon
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* Copyright (C) 2012 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "daemon.h"
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#include "actions.h"
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#include "optgroups.h"
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static int
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dosfslabel (const char *device, const char *label)
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{
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int r;
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CLEANUP_FREE char *err = NULL;
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r = command (NULL, &err, "dosfslabel", device, label, NULL);
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if (r == -1) {
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reply_with_error ("%s", err);
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return -1;
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}
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return 0;
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}
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static int
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xfslabel (const char *device, const char *label)
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{
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/* Don't allow the special value "---". If people want to clear
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* the label we'll have to add another call to do that.
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*/
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if (STREQ (label, "---")) {
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reply_with_error ("xfs: invalid new label");
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return -1;
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}
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return xfs_set_label (device, label);
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}
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int
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do_set_label (const mountable_t *mountable, const char *label)
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{
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/* How we set the label depends on the filesystem type. */
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CLEANUP_FREE char *vfs_type = do_vfs_type (mountable);
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if (vfs_type == NULL)
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return -1;
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struct {
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const char *fs;
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int (*func)(const char *device, const char *label);
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} const setters[] = {
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{ "btrfs", btrfs_set_label },
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{ "msdos", dosfslabel },
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{ "vfat", dosfslabel },
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{ "fat", dosfslabel },
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{ "ntfs", ntfs_set_label },
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{ "xfs", xfslabel },
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{ "swap", swap_set_label },
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{ NULL, NULL }
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};
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/* Special case: ext2/ext3/ext4 */
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if (fstype_is_extfs (vfs_type))
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return do_set_e2label (mountable->device, label);
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for (size_t i = 0; setters[i].fs; ++i) {
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if (STREQ (vfs_type, setters[i].fs))
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return setters[i].func (mountable->device, label);
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}
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/* Not supported */
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NOT_SUPPORTED (-1,
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"don't know how to set the label for '%s' filesystems",
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vfs_type);
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}
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